Thread-guide.



F. S. CULVER.

THREAD GUIDE.

APPLICATION FILED APR. 17. 1915.

l 1 96A3$ Patented Aug. 29, 1916.

TINITED PATENT @FFIQE FREDERICK SLOCULVI CULVEBI, O13 TA'UITTON, MASSACHUSETTS.

THREAD-GUIDE.

Application fi1ed. April 17, 1915.

To all whom it may concern:

Be it known that I, FREDERICK S. CULVER, a citizen of the United States, residing at Taunton, in the county of Bristol and State of lvlassachusetts, have invented a new and useful Improvement in Thread-Guides, of which the following is a specification.

This invention relates to certain new and useful improvements in thread guides, and pertains more particularly to thread guides used in spooling and similar machines and particularly constructed to catch slubs or other irregular formations, such as knots in yarn, so as to prevent imperfect yarn being incorporated in the work.

The primary object of the present invention is to provide improved means for effecting catching of the slubs; to provide a structure which can be easily and quickly and accurately adjusted to threads of varying diameters and which. have several adjustments, and to generally simplify and decrease the cost of production of devices of the character indicated.

In the drawings Figure 1 is a side elevation of the invention. Fig. 2 is an end view. Fig. 3 is a section on the line 33 of Fig. 1. Fig. 1 is a detail perspective view of the blade. Fig. 5 is a similar view of the blade hanger or pivoting means.

The present invention includes a supporting base bracket 1 which is formed with a smooth face or aw 2 upon which the thread rides or moves. The bracket has an L-shaped arm 3 provided with bosses 4t perforated to receive a rod 5 therein. The slub blade 6 is mounted upon a hanger 7 which is of U- shape and has perforated bearings 8 that receive the rod 5 whereby the hanger, to which the blade is secured, is mounted for pivotal movement in overhanging relation to the jaw face 2. The blade 6 has elongated transverse slots 9 through which passbolts 10 that are employed to secure the blade 6 to the hanger 7, the slots permitting adjustment of the blade toward or away from the jaw face 2, in an obvious manner.

The bracket has a horizontal chamber 11 formed in the vertical part of its L-shaped arm 3 in which chamber a coil spring 12 is received the spring abutting the blade 6 at one end thereof and at its oppposite end being engaged by an adjusting screw 13 which closes the other end of chamber 11 and is threaded into engagement with said cham- Specification of Letters Patent.

Patented Aug. 29, 1916.

Serial No. 22,100.

ber, so that by rotation of the screw the tension of the spring may be adjusted.

A short arm 1% projects up from the jaw face 2 in spaced relation to the blade and has an adjustable screw 15 which engages with the blade and limits the swinging movement thereof under the tension of the spring 12.

In operation the thread rides over jaw face 2 and beneath the blade, the blade hav ing been previously set for the gage of thread by not only adjustment of the bolts 10 but in addition by adjustment of the screw.

15, two adjustments being thus available for the operator. The spring normally holds the blade in out position, but should a slub encounter the blade, the latter will be moved by the slub against the action of the spring so as to pinch the slub and break the thread or yarn.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a thread guide, a base bracket having a rigid smooth jaw face and having an L- shaped arm provided with perforated bosses which overhang the jaw face, a rod secured in said bosses, a U-shaped hanger having bearings which receive the rod, a blade engaged with the hanger and having elongated vertical slots, bolts passed through the blade slots and the hanger, the vertical arm of the bracket having a chamber, a coiled spring in the chamber engaged with the blade, a screw closing the outer end of the chamber and engaged with the spring to enable adjustment of the tension thereof, an arm on the bracket spaced from the front of the blade, and a screw in the second arm engaged with the blade to limit the outward movement thereof under the spring tension.

2. In a thread guide, a bracket having a jaw, spaced opposing arms arranged at one end of the jaw, a hanger carried by one arm for swinging against the jaw, a blade carried by the hanger and having one end extending beyond the latter and disposed between the arms, a spring carried by one of the arms and engaged with the blade extension for yieldingly holding the blade from the jaw, and adjustable stop means on the other arm adapted to engage with the blade extension to limit the swinging movement thereof from the j aw under the tension of the spring.

3. In a thread guide, a body having a rigid jaw, a blade supported on the body for 'a variable tension spring on the bracket engaging the movable jaw to hold yieldably the latter spaced from the rigid jaw, and adjustable positive means engaging the movable jaw for limiting the swinging movement of the latter from the rigid jaw.

In testimony whereof I have signed my 10 name to this specification in the presence of two subscribing witnesses.

FREDERICK SLOCUM CULVER.

Witnesses:

ADA E. HAGERTY, J. A. MILLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

